data encryption presentation

Table of Contents

What is data encryption, how does data encryption work, why do we need data encryption, what are the 2 types of data encryption techniques, what is hashing, what is an encryption algorithm, best encryption algorithms, the future of data encryption, should you use symmetric or asymmetric encryption, businesses use encryption for many purposes, steps to implement an effective encryption strategy, what is a key in cryptography, do you want to learn more about cybersecurity, what is data encryption: types, algorithms, techniques and methods.

Data encryption is a common and effective security method—a sound choice for protecting an organization’s information. However, there are a handful of different encryption methods available, so how do you choose?

In a world where cybercrimes are on the rise , it’s comforting to know that there are as many methods available to protect network security as there are ways of trying to penetrate it. The real challenge is deciding which techniques an internet security expert should employ that best suits their organization’s specific situation.

Have a look at the video below that explains what is encryption, how encryption and decryption works with simple step by step explanation, types of encryption and more.

Gain experience via a remote internship opportunity and obtain an internship certificate by choosing our unique Advanced Executive Program in Cybersecurity . Grab your seat now and enhance your resume in just 6 months. Contact our team today!

Data encryption is a method of protecting data by encoding it in such a way that it can only be decrypted or accessed by an individual who holds the correct encryption key. When a person or entity accesses encrypted data without permission, it appears scrambled or unreadable.

Data encryption is the process of converting data from a readable format to a scrambled piece of information. This is done to prevent prying eyes from reading confidential data in transit. Encryption can be applied to documents, files, messages, or any other form of communication over a network.

In order to preserve the integrity of our data, encryption is a vital tool whose value cannot be overstated. Almost everything we see on the internet has passed through some layer of encryption, be it websites or applications.

Noted antivirus and endpoint security experts at Kaspersky define encryption as “… the conversion of data from a readable format into an encoded format that can only be read or processed after it's been decrypted.”

They go on to say that encryption is considered the basic building block of data security, widely used by large organizations, small businesses, and individual consumers. It’s the most straightforward and crucial means of protecting information that passes from endpoints to servers.

Considering the elevated risk of cybercrime today, every person and group that uses the internet should be familiar with and incorporate basic encryption techniques, at the very least.

Looking to excel in data management? Simplilearn's data management courses offer expert insights and practical knowledge for success.

In the realm of cybersecurity education, a comprehensive cyber security bootcamp offers an opportunity to dive into the intricacies of data encryption. Participants gain insights into various encryption methods, such as symmetric and asymmetric encryption, and their significance in safeguarding sensitive information.

The data that needs to be encrypted is termed plaintext or cleartext. The plaintext needs to be passed via some encryption algorithms, which are basically mathematical calculations to be done on raw information. There are multiple encryption algorithms, each of which differs by application and security index.

Apart from the algorithms , one also needs an encryption key. Using said key and a suitable encryption algorithm, the plaintext is converted into the encrypted piece of data, also known as ciphertext. Instead of sending the plaintext to the receiver, the ciphertext is sent through insecure channels of communication. 

Once the ciphertext reaches the intended receiver, he/she can use a decryption key to convert the ciphertext back to its original readable format i.e. plaintext. This decryption key must be kept secret at all times, and may or not be similar to the key used for encrypting the message. Let’s understand the same with an example.

Let us understand the work process with the help of an example.

A woman wants to send her boyfriend a personal text, so she encrypts it using specialized software that scrambles the data into what appears to be unreadable gibberish. She then sends the message out, and her boyfriend, in turn, uses the correct decryption to translate it.

Thus, what starts out looking like this:

Fortunately, the keys do all the actual encryption/decryption work, leaving both people more time to contemplate the smoldering ruins of their relationship in total privacy.

Next, in our learning about effective encryption methods, let us find out why we need encryption.

Become a Cyber Security Professional

• 3.5 Million Unfilled Cybersecurity Roles Globally
• 700 K Available Job Roles

Cyber Security Expert

• Get Lifetime access to self-paced videos
• CEH Exam Voucher with 6 months of complimentary iLabs access

Post Graduate Program in Cyber Security

• Live sessions on the latest AI trends, such as generative AI, prompt engineering, explainable AI, and more
• Simplilearn Post Graduate Certificate

Here's what learners are saying regarding our programs:

Martin Beard

Lpl financial advisor , hfcu financial services.

My learning experience with Simplilearn was enriching and valuable. It will undoubtedly help me to transition into my new chosen field of Cybersecurity. I liked the live virtual classes as well as the recorded sessions.

Maurice Echu

Information services manager , mercy ships.

Simplilearn's certificate gave my career a significant boost. I could put the knowledge I gained through the program into practice in different projects. My overall income increased by 166%, and I got promoted to the position of Information Service Manager at Mercy Ships.

If anyone wonders why organizations need to practice encryption, keep these four reasons in mind:

• Authentication: Public key encryption proves that a website's origin server owns the private key and thus was legitimately assigned an SSL certificate. In a world where so many fraudulent websites exist, this is an important feature.
• Privacy: Encryption guarantees that no one can read messages or access data except the legitimate recipient or data owner. This measure prevents cybercriminals, hackers, internet service providers, spammers, and even government institutions from accessing and reading personal data.
• Regulatory Compliance: Many industries and government departments have rules in place that require organizations that work with users’ personal information to keep that data encrypted. A sampling of regulatory and compliance standards that enforce encryption include HIPAA, PCI-DSS, and the GDPR .
• Security: Encryption helps protect information from data breaches, whether the data is at rest or in transit. For example, even if a corporate-owned device is misplaced or stolen, the data stored on it will most likely be secure if the hard drive is properly encrypted. Encryption also helps protect data against malicious activities like man-in-the-middle attacks, and lets parties communicate without the fear of data leaks.

Also Read: Bridging The Gap Between HIPAA & Cloud Computing

Let us now find out the important types of data encryption methods.

There are several data encryption approaches available to choose from. Most internet security (IS) professionals break down encryption into three distinct methods: symmetric, asymmetric, and hashing. These, in turn, are broken down into different types. We’ll explore each one separately.

What is the Symmetric Encryption Method?

Also called private-key cryptography or a secret key algorithm, this method requires the sender and the receiver to have access to the same key. So, the recipient needs to have the key before the message is decrypted. This method works best for closed systems, which have less risk of a third-party intrusion.

On the positive side, symmetric encryption is faster than asymmetric encryption. However, on the negative side, both parties need to make sure the key is stored securely and available only to the software that needs to use it.

What is the Asymmetric Encryption Method?

Also called public-key cryptography , this method uses two keys for the encryption process, a public and a private key, which are mathematically linked. The user employs one key for encryption and the other for decryption, though it doesn’t matter which you choose first.

As the name implies, the public key is freely available to anyone, whereas the private key remains with the intended recipients only, who need it to decipher the messages. Both keys are simply large numbers that aren’t identical but are paired with each other, which is where the “asymmetric” part comes in.

Hashing generates a unique signature of fixed length for a data set or message. Each specific message has its unique hash, making minor changes to the information easily trackable. Data encrypted with hashing cannot be deciphered or reversed back into its original form. That’s why hashing is used only as a method of verifying data.

Many internet security experts don’t even consider hashing an actual encryption method, but the line is blurry enough to let the classification stand. The bottom line, it’s an effective way of showing that no one has tampered with the information.

Now that we have gone through the types of data encryption techniques, let us next learn the specific encryption algorithms.

Encryption algorithms are used to convert data into ciphertext. By using the encryption key, an algorithm can alter data in a predictable manner, resulting in the encrypted data appearing random, but it can be converted back into plaintext by using the decryption key.

There’s a host of different encryption algorithms available today. Here are five of the more common ones.

• AES. The Advanced Encryption Standard (AES) is the trusted standard algorithm used by the United States government, as well as other organizations. Although extremely efficient in the 128-bit form, AES also uses 192- and 256-bit keys for very demanding encryption purposes. AES is widely considered invulnerable to all attacks except for brute force. Regardless, many internet security experts believe AES will eventually be regarded as the go-to standard for encrypting data in the private sector.
• Triple DES. Triple DES is the successor to the original Data Encryption Standard (DES) algorithm , created in response to hackers who figured out how to breach DES. It’s symmetric encryption that was once the most widely used symmetric algorithm in the industry, though it’s being gradually phased out. TripleDES applies the DES algorithm three times to every data block and is commonly used to encrypt UNIX passwords and ATM PINs.
• RSA. RSA is a public-key encryption asymmetric algorithm and the standard for encrypting information transmitted via the internet. RSA encryption is robust and reliable because it creates a massive bunch of gibberish that frustrates would-be hackers, causing them to expend a lot of time and energy to crack into systems.
• Blowfish. Blowfish is another algorithm that was designed to replace DES. This symmetric tool breaks messages into 64-bit blocks and encrypts them individually. Blowfish has established a reputation for speed, flexibility, and is unbreakable. It’s in the public domain, so that makes it free, adding even more to its appeal. Blowfish is commonly found on e-commerce platforms, securing payments, and in password management tools.
• Twofish. Twofish is Blowfish’s successor. It’s license-free, symmetric encryption that deciphers 128-bit data blocks. Additionally, Twofish always encrypts data in 16 rounds, no matter what the key size. Twofish is perfect for both software and hardware environments and is considered one of the fastest of its type. Many of today’s file and folder encryption software solutions use this method.
• Rivest-Shamir-Adleman (RSA). Rivest-Shamir-Adleman is an asymmetric encryption algorithm that works off the factorization of the product of two large prime numbers. Only a user with knowledge of these two numbers can decode the message successfully. Digital signatures commonly use RSA, but the algorithm slows down when it encrypts large volumes of data.

Although the Triple Data Encryption Algorithm (3DEA) is the formal name, it is more generally known as 3DES. This is because the 3DES method encrypts its data three times with the Data Encryption Standard (DES) cypher. DES is a Feistel network-based symmetric-key technique. As a symmetric key cypher, it employs the same key for both encryption and decryption. The Feistel network renders each of these processes almost identical, resulting in a more efficient technique to implement.

Although DES has a 64-bit block and key size, the key only provides 56 bits of protection in practise. Because of the short key length of DES, 3DES was created as a more secure alternative.The DES algorithm is executed three times with three keys in 3DES; nevertheless, it is only deemed secure if three distinct keys are utilised.

When the shortcomings of standard DES became clear, 3DES was widely employed in a variety of applications. Prior to the emergence of AES, it was one of the most widely used encryption algorithms.

Examples of its applications include:

• EMV payment systems 
• Microsoft Office 

Because there are better alternatives, several of these sites no longer employ 3DES.

According to a draught proposal provided by the National Institute of Standards and Technology (NIST), all variants of 3DES would be deprecated until 2023 and prohibited beginning in 2024. Although it is only a draught, the plan represents the end of an era.

As a result, the industry is pushing encryption on several fronts. Some attempts are being made to increase key sizes in order to prevent brute-force decoding. Other initiatives are investigating novel cryptography algorithms. For example, the National Institute of Standards and Technology is testing a quantum-safe next-generation public key algorithm.

The issue is that most quantum-safe algorithms are inefficient on traditional computer systems. To overcome this issue, the industry is concentrating on inventing accelerators to accelerate algorithms on x86 systems.

Homomorphic encryption is a fascinating notion that allows users to do computations on encrypted data without first decrypting it. As a result, an analyst who requires it can query a database holding secret information without having to seek permission from a higher-level analyst or request that the data be declassified.

In addition to securing data in all states, homomorphic encryption also protects it in motion, while in use, and while at rest (on a hard drive). Another advantage is that it is quantum-safe, as it uses some of the same arithmetic as quantum computers.

Asymmetric and symmetric encryption are both better suited to specific scenarios. Symmetric encryption, which employs a single key, is preferable for data-at-rest. Data contained in databases must be encrypted to prevent it from being hacked or stolen. Because this data only has to be secure until it needs to be retrieved in the future, it does not require two keys, simply the one supplied by symmetric encryption. Asymmetric encryption, on the other hand, should be used on data transferred to other persons via email. If only symmetric encryption was used on data in emails, an attacker may steal or compromise the material by obtaining the key used for encryption and decryption. Since their public key was used to encrypt the data, the sender and receiver ensure that only the recipient may decrypt the data using asymmetric encryption. Both methods of encryption are used in conjunction with other procedures, such as digital signature or compression, to give further data protection.

Data encryption in businesses eliminates information breaches and reduces the cost of their impact. It is one of the most effective security methods for protecting sensitive information, but you must understand what documents to encrypt and how to use them efficiently.

According to a 2019 survey, around 45% of firms have a consistent encryption policy in place across their enterprise. If your firm operates on cloud infrastructure, you must first plan your security requirements for your cloud deployment and any data that will be moved to the cloud. Make a list of all sensitive data sources so you know what needs to be encrypted with which degree of bit-key security.

If your organization is developing a cloud-based website, for example, you will need to allow engineers and manufacturers to exchange source code and design documents among themselves. You would need to install end-to-end encryption protection using one of the numerous ways discussed in this article to safeguard the sensitive data that they would need to communicate. You can ensure the safety of your data in the cloud even if the cloud storage provider or your account is compromised even if some cloud providers provide some level of encryption.

Collaboration

Developing an encryption strategy necessitates teamwork. It is better to approach it as a large-scale project including members of management, IT, and operations. Begin by gathering important data from stakeholders and identifying the legislation, laws, guidelines, and external forces that will impact purchase and implementation decisions. You can then proceed to identify high-risk places such as laptops, mobile devices, wireless networks, and data backups.

Define Your Security Requirements

It's helpful to have a general concept of your security requirements. A threat assessment is a smart place to start since it will help you identify what data needs to be encrypted. The strength and processing requirements of different encryption systems might vary, therefore it's also crucial to assess how secure your system needs to be.

Select the Appropriate Encryption Tools

Once you've determined your security requirements, you can start looking for the solutions that will best fulfill them. Keep in mind that in order to effectively protect your network, you will most likely need to install various data encryption algorithms. For example, you may utilize a secure sockets layer (SSL) protocol to encrypt data sent to and from your website, together with the advanced encryption standard (AES) to safeguard data at rest and backups. Using the correct encryption technologies at each level of data storage and transit will assist to keep your company's data as safe as possible. Encrypted applications, such as encrypted email services, may also help to ensure overall security.

Prepare to Smoothly Deploy Your Encryption Plan

The execution of your encryption strategy, like any big change in your firm, must be well-planned. If you have customer-facing apps, your new encryption may need to be integrated into the application's back end. Similarly, additional procedures may be required to integrate your new encryption method with legacy systems. You can implement these changes with minimal disturbance if you make excellent planning ahead of time. Working with a third-party IT service provider may also aid in the transition. You will not overload your own IT personnel with too many chores involved with implementing your encryption approach.

After Installation, Maintain Security Culture

Data encryption, as valuable as it is, is not a panacea for your security problems. To get good outcomes, ensure sure your team is educated to use proper encryption and key management methods. If workers put their encryption keys on insecure servers, hostile attackers may get access to your company's encrypted data. This type of human mistake is thought to be responsible for 84 percent of cybersecurity breaches. Encryption should be used in conjunction with other security techniques to maximize security. Your company may keep its data safe with many levels of security by deploying secure hardware and a strong firewall in conjunction with data encryption.

A key is a string of random characters in a certain sequence. Encryption techniques utilize a key to jumble data so that anybody without the key cannot decipher the information. Algorithms, which are sophisticated mathematical calculations, are used in modern encryption. Modern keys are generally randomized much further than a basic string of random integers.

This is true for a number of reasons:

• Computers can do significantly more complex computations in far less time than human cryptographers, making more complex encryption not only conceivable but also required.
• Computers may change information at the binary level, the 1s and 0s that make up data, rather not only at the letter and number level.
• Computer software can decode encrypted data if it is not sufficiently randomized. True randomness is critical for really safe encryption.

A cryptographic key, when combined with an encryption method, will jumble a text beyond human recognition.

There’s a lot to learn about cybersecurity, and Simplilearn offers a great selection of valuable courses to help you enter this challenging field or improve your existing knowledge by upskilling . For instance, if you want to become an ethical hacker, and have a career testing network systems, check our CEH certification course.

Or check out some enterprise-level security training courses such as CISM , CSSP , CISA , CompTIA , and COBIT 2019 .

If you can’t decide between the above courses, why not take a handful of them in one convenient program? The Cyber Security Expert Master’s Program teaches you the principles of CompTIA, CEH, CISM, CISSP, and CSSP.

Do You Want to Become a Network Security Professional?

If you’re ready to take those first steps on the path to becoming a network security professional, then you should start with Simplilearn’s CISSP certification training course . The course develops your expertise in defining IT architecture and in designing, building, and maintaining a secure business environment using globally approved information security standards. The course covers industry best practices and prepares you for the CISSP certification exam held by (ISC)².

You get over 60 hours of in-depth learning, the requisite 30 CPEs you need for taking the certification exam, five simulation test papers designed to help you prepare for the exam, plus an exam voucher. Whether you choose self-paced learning, the Blended Learning option, or a corporate training solution, you will get the benefits of Simplilearn’s expert training, and be ready to embark on that challenging and rewarding network security career!

1. What is data encryption?

Data Encryption is the process of protecting and securing data by encoding it in such a way that it can only be accessed or decrypted by someone who has the encryption key. In Data encryption, the data is scrambled before it is sent to the person who can unscramble it using a key.

2. What are the 2 types of data encryption?

The two types of data encryption methods are Symmetric Encryption and Asymmetric Encryption. Symmetric encryption is also known as private-key cryptography or secret key algorithm and requires both the parties of sender and receiver to have access to the same key to decrypt the data. Asymmetric Encryption, also known as public-key cryptography, uses two separate keys for encryption process. One key is a public key and the other is a private key which are linked and used for encryption and decryption.

3. What is encryption used for?

Encryption is used to protect data being transmitted. This ensures data doesn’t fall into the wrong hands of cybercriminals, hackers, internet service providers, spammers, and even government institutions. Any time you access ATM or sending messages across devices such as Snapchat, these messages are encrypted to ensure that no-one other than the person it was sent to can access it.

4. Insights on data encryption?

There is a massive amounts of data being stored on cloud servers and being transmitted everyday. It is virtually impossible to conduct day-to-day operations without storing or transmitting these copious amounts of data. Data encryption software  ensure that the data is secured and transmitted safely from one channel to another. 

5. How data encryption works

The raw data is in plain text, which means it can be read legibly. This data is then transmitted through encryption algorithms that scramble the data from ‘Hi! How are you?’ to ‘A#$*Y*&%($Y#*%Y%*’. This data is then transmitted across to the receiver, which then goes through an decryption process before is visually presented as plain text to the receiver.

6. Can encrypted data be hacked?

Yes, encrypted data can be hacked. However, depending on the level of encryption applied on the data, the difficulty level increased.

7. How to implement Data encryption?

Before you start implementing Data encryption, you need to understand and define your security needs. The level of encryption will depend on the level of security required by you and your organization. Choose the right encryption tools that suit your needs. Create and implement a encryption strategy. Learn more in detail about data encryption with our Cyber Security Expert course.

8. What is data encryption examples?

WEP and WPA are encryption technologies that are extensively used in wireless routers. Examples of asymmetric encryption include RSA and DSA. RC4 and DES are two instances of symmetric encryption. In addition to encryption techniques, there are what is known as Common Criteria (CC).

9. What is data encryption and why is it important?

Simply put, encryption is the act of encoding data so that it is concealed from or unavailable to unauthorized users. It aids in the protection of private information and sensitive data, as well as the security of communication between client apps and servers.

10. What is data encryption in DBMS?

Encrypting data involves changing it from a readable (plaintext) format to an unreadable, encoded one (ciphertext). Data that has been encrypted can only be viewed or processed after it has been decrypted with a decryption key or password.

11. What are the 4 basic types of encryption systems?

• Advanced Encryption Standard (AES) 
• Rivest-Shamir-Adleman (RSA)

12. What are the three types of encryption?

DES, AES, and RSA are the three primary encryption types. A more recent 3DES is a block cipher that is still in use today. The Triple Data Encryption Standard (3DES) does exactly what its name says. For triple protection, it employs three independent 56-bit keys rather than a single 56-bit key. The Advanced Encryption Standard (AES) is used for confidential communications by governments, security groups, and common enterprises. "Rivest-Shamir-Adleman," or RSA, is another common encryption system. It is frequently used to encrypt data transferred over the internet and depends on a public key to do so. Those receiving the data will be given their own private key to decode the communications.

Our Cyber Security Certifications Duration And Fees

Cyber Security Certifications typically range from a few weeks to several months, with fees varying based on program and institution.

Get Free Certifications with free video courses

Cyber Security

Introduction to Cyber Security

Introduction to Cybercrime

Learn from Industry Experts with free Masterclasses

Career Masterclass: Develop a Cybersecurity Red Team Career

Cyber Analyst vs Ethical Hacker: Choosing the Right Career Path?

Steer Your Cyber Security Career Ahead in 2024 with Cyber Security Expert Master’s Program

Recommended Reads

Data Science Salary Guide 2021

Top 10 Encryption Software For Maximum Security

All You Need to Know About Asymmetric Encryption

Secret to Unlocking Tableau's Hidden Potential

8 Most Effective Data Collection Methods With Their Techniques and Use Cases Explained

All You Need to Know About Symmetric Encryption

Get Affiliated Certifications with Live Class programs

• PMP, PMI, PMBOK, CAPM, PgMP, PfMP, ACP, PBA, RMP, SP, and OPM3 are registered marks of the Project Management Institute, Inc.

DATA ENCRYPTION STANDARD (DES)

Jan 04, 2020

770 likes | 1.04k Views

DATA ENCRYPTION STANDARD (DES). Outline. History Encryption Key Generation Decryption Attacks On DES DES Cracker Improved Key Size for 2DES,3DES. History. In 1971, IBM developed an algorithm, named LUCIFER which operates on a block of 64 bits , using a 128-bit key.

Share Presentation

• cipher text
• key generation
• data encryption standard
• main key 64 bits

Presentation Transcript

Outline • History • Encryption • Key Generation • Decryption • Attacks On DES • DES Cracker • Improved Key Size for 2DES,3DES

History In 1971, IBM developed an algorithm, named LUCIFER which operates on a block of 64 bits, using a 128-bit key Walter Tuchman, an IBM researcher, refined LUCIFER and reduced the key size to 56-bit,to fit on a chip.

History In 1977, the results of Tuchman’s project of IBM was adopted as the Data Encryption Standard by NBS (NIST).

Feistel Cipher Structure • Block size: larger block sizes mean greater security • Partition the data block into two halves L and R • Key Size: larger key size means greater security • Number of rounds: multiple rounds offer increasing security • In each round, • R does not change. • L goes through an operation that depends on R and a round key derived from the key. • Subkey generation algorithm: greater complexity will lead to greater difficulty of cryptanalysis. • Fast software encryption/decryption: the speed of execution of the algorithm becomes a concern

DES: The Data Encryption Standard • Most widely used block cipher in the world. • Based on the Feistel cipher structure processing. • Ruled for more than 3 decades. • Rounds = 16 no • Block = 64 bits • Key = 56 bits • What is specific to DES is the design of the F function and how round keys are derived from the main key.

Design Principles of DES To achieve high degree of diffusion and confusion invented by Claude Shannon . Diffusion: making each plaintext bit affect as many cipher text bits as possible. Confusion: making the relationship between the encryption key and the cipher text as complex as possible.

6.1.2 Overview DES is a block cipher, as shown in Figure Figure . Encryption and decryption with DES

Encryption 64-bit plain-text (X) Initial Permutation (IP) 64-bit key (K) Key i Round (i) Key Generation (KeyGen) 32-bit Switch (SW) Inversion of Initial Permutation (IP-1) 64-bit cipher-text (Y)

Encryption Steps In DES • Plain text:64-bit • Initial Permutation: IP( ) • Divide in 32-bit LPT+RPT • Roundi: 1≤ i ≤ 16 key • Final Permutation Inverse IP: IP-1( ) • Cipher text:64-bit

Initial Permutation IP • IP: the first step of the encryption. • It reorders the input data bits. • The last step of encryption is the inverse of IP. • IP and IP-1 are specified by tables • http://en.wikipedia.org/wiki/DES_supplementary_material

Initial Permutation (IP) • IP • Note: IP(IP-1) = IP-1(IP) = I

Details of Single Round in DES • Separate plaintext as L0R0 • L0: left half 32 bits of plaintext • R0: right half 32 bits of plaintext • Key Transformation • Expansion/permutation: E( ) • Substitution/choice: S-box( ) • Permutation: P-Box( ) • X-OR & Swap

Step 1: Key Generation • Original Key: Key0 • Permuted Choice One: PC_1( ) • Permuted Choice Two: PC_2( ) • Schedule of Left Shift: SLS( ) • It involves permutation & selection • Compression from 56 bit key to 48 bit key • Round = 1,2,9,16 -> PC_1( ) • Round = Remaining-> PC_2( ) No of key bit shifted

Round Key/Sub Key Generation • Main key: 64 bits. • 56-bits are selected and permuted using Permuted Choice One (PC1); and then divided into two 28-bit halves. • In each round: • Left-rotateeach half separately by either 1 or 2 bits according to a rotation schedule. • Select 24-bits from each half, and permute the combined 48 bits. • This forms a round key/sub key.

Key Generation Input Key Permuted Choice One (PC-1) C0 D0 ▪ ▪ ▪ ▪ ▪ ▪ Ci-1 Di-1 Permuted Choice Two (PC-2) Keyi Schedule of Left Shifts Ci Di

Key Generation->Compression Method (Encryption) [1]

Step 2: Expansion/permutation: • Expansion permutation table for RPT Expansion Expansion

Expansion permutation Since RI−1 is a 32-bit input and KI is a 48-bit key, we first need to expand RI−1 to 48 bits.

(XOR) After the expansion permutation, DES uses the XOR operation on the expanded right section and the round key. Note that both the right section and the key are 48-bits in length. Also note that the round key is used only in this operation. STEP 1 (XOR) STEP 2 = RESULT FOR NEXT STEP

Encryption (Round) (Key Generation) [1]

Step 3: S-Box Substitution

The S-Boxes • Eight S-boxes each map 6 to 4 bits • Each S-box is specified as a 4 x 16 table • each row is a permutation of 0-15 • outer bits 1 & 6 of input are used to select one of the four rows • inner 4 bits of input are used to select a column • All the eight boxes are different.

Encryption (Round) • S-box

Box S1 0 1 2 3 • For example, S1(101010) = 6 = 0110.

Step 4: P-BOX permutation->Replacement of bit INPUT POSITION 16 = OUTPUT POSITION 1 • P

Step 5:XOR & SWAP Li-1 Ri-1 Expansion/permutation (E_table) Ki XOR F Substitution/choice (S-box) Permutation (P) XOR Li Ri Next Round

Final Permutation • IP-1 At the end of the 16 rounds, it is performed only once. Simple transposition

DES Encryption Overview

Decryption • The same algorithm as encryption. • Reversed the order of key (Key16, Key15, … Key1). • For example: • IP undoes IP-1 step of encryption. • 1st round with SK16 undoes 16th encrypt round. [1]

Avalanche Effect • Avalanche effect: • A small change in the plain text or in the key results in a significant change in the cipher text. • DES exhibits a strong avalanche effect • Changing 1 bit in the plaintext affects 34 bits in the cipher text on average. • Changing 1 bit in the key affects 35 bits in the cipher text on average. • See the table in the next page…..

DES Exhibits A Strong Avalanche Effect

Attacks on DES • Brute-force key search • Only Half of the possible keys space is used. • Trying 1 key per microsecond would take 1000+ years on average, due to the large key space size, 256 ≈ 7.2×1016. • Differential cryptanalysis • Possible to find a key with 247 plain text-cipher text samples • Known-plaintext attack • Liner cryptanalysis • Possible to find a key with 243 plain text-cipher text samples • Known-plaintext attack

Differential cryptanalysis In 1990 by Eli Biham & Adi Shamir It looks at pairs of CT whose PT have differences. It analyses progress of these differences. The idea is choose pairs of PT with fixed differences. The 2 PT can be chosen at random, as long as they satisfy specific difference condition. Resulting differences in the cipher texts, different likelihood too different keys. As more & more cipher text pairs are analyzed, the correct key emerges.

Linear Cryptanalysis Invented by Mitsuru Matsui It based on linear approximations. XOR some PT bits together. XOR some CT bits together. XOR the result. We will get a single bit , which is the XOR of some of the key bits.

Timing Attacks • Observe how long it takes for the algorithm to decrypt different blocks of CT. • Try to obtain PT or key used for Encryption. • Time may wary w.r.t sized of CT blocks. • clear a replacement for DES was needed • theoretical attacks that can break it • demonstrated exhaustive key search attacks

DES Cracker • DES Cracker: • A DES key search machine • contains 1536 chips • Cost: $250,000. • could search 88 billion keys per second • won RSA Laboratory’s “DES Challenge II-2” by successfully finding a DES key in 56 hours. • DES is feeling its age. A more secure cipher is needed.

Ultimately DES was proved insecure • In 1997 on Internet in a few months • in 1998 on dedicated h/w in a few days • In 1999 above combined in 22hrs! • The major criticism of DES regards its key length. Fortunately DES is not a group. This means that we can use double or triple DES to increase the key size. • H/W->Processing Speeds, Memory, Parallel Processing. Etc.

Multiple Encryption with DES • In 2001, NIST published the Advanced Encryption Standard (AES) to replace DES. • But users in commerce and finance are not ready to give up on DES. • As a temporary solution to DES’s security problem, one may encrypt a message (with DES) multiple times using multiple keys: • 2DES is not much securer than the regular DES • So, 3DES with either 2 or 3 keys is used used in PGP.

2DES • Consider 2DES with two keys: C = EK2(EK1(P)) • Decryption: P = DK1(DK2(C)) • Key length: 56 x 2 = 112 bits • This should have thwarted brute-force attacks? • Wrong!

Meet-in-the-Middle Attack on 2DES EK1 EK2 P C • 2-DES: C = EK2(EK1(P)) • Merkle & Hellman • Given a known pair (P, C), attack as follows: • Encrypt P with all 256 possible keys for K1. • Decrypt C with all 256 possible keys for K2. • If EK1’(P) = DK2’(C), try the keys on another (P’, C’). • If works, (K1’, K2’) = (K1, K2) with high probability. • Takes O(256) steps; not much more than attacking 1-DES.

A substitution that maps every possible input to every possible output is a group. Figure Composition of mapping

Why Triple-DES? • meet-in-the-middle attack • works whenever use a cipher twice • since X = EK1[P] = DK2[C] • attack by encrypting P with all keys and store • then decrypt C with keys and match X value • can show takes O(256) steps

Triple-DES with Three-Keys • although are no practical attacks on two-key Triple-DES have some indications • can use Triple-DES with Three-Keys to avoid even these • C = EK3[EK2[EK1[P]]] • has been adopted by some Internet applications, • E.g PGP, S/MIME • Highly Secure

Triple-DES with Two-Keys • If algorithm uses 3 encryptions • would seem to need 3 distinct keys • but can we use 2 keys with E-D-E sequence • C = EK1[DK2[EK1[P]]] • P = DK1[EK2[DK1[C]]] • So Triple DES work with two keys • This is called as EDE mode. • standardized in ANSI X9.17 & ISO8732 • no current known practical attacks

References • [1] William Stallings, Cryptography and Network Security, 1999.

• More by User

Data Encryption Standard

Data Encryption Standard. CS-471/971. Category of Standard : Computer Security. Explanation : The Data Encryption Standard (DES) specifies a FIPS approved cryptographic algorithm as required by FIPS 140-1.

904 views • 38 slides

The data encryption standard (DES)

Online Cryptography Course Dan Boneh. Block ciphers. The data encryption standard (DES). Block ciphers: crypto work horse. n bits. n bits. E, D. PT Block. CT Block. Key. k Bits. Canonical examples: 3DES: n= 64 bits, k = 168 bits

526 views • 16 slides

Advanced Encryption Standard

Advanced Encryption Standard. Origins. NIST issued a new version of DES in 1999 (FIPS PUB 46-3) DES should only be used in legacy systems 3DES will be used 3DES has 2 attractions 168-bit key length Removes vulnerability to brute force attack

765 views • 36 slides

Lect. 7 : Data Encryption Standard

Lect. 7 : Data Encryption Standard . Plaintext block 64 bits. Key 56 bits. DES. Ciphertext block 64 bits. Data Encryption Standard (DES). DES - History 1976 – adopted as a federal standard 1977 – official publication as FIPS PUB 46 1983, 1987, 1993 – recertified for another 5 years.

566 views • 17 slides

The Advanced Encryption Standard

The Advanced Encryption Standard. CSIS 5857: Encoding and Encryption. AES History. 1997: NIST calls for proposals for DES replacement 56-bit DES key not computationally secure Triple DES very slow DES S-Boxes poorly understood 1999: Several algorithms chosen as finalists

1.11k views • 41 slides

Data Encryption Standard (DES)

Data Encryption Standard (DES). Symmetric Cryptography. C = E(P,K) P = D(C,K) Requirements Given C, the only way to obtain P should be with the knowledge of K Any attempt to attack the cipher should be comparable in complexity to brute-force method

554 views • 27 slides

INCS 741: Cryptography. Data Encryption Standard (DES). Dr. Monther Aldwairi New York Institute of Technology- Amman Campus 10/18/2010. Block Ciphers. Block Ciphers. Stream ciphers process messages a bit or byte at a time when en/decrypting Vigenère Cipher Caeser Cipher

1.12k views • 70 slides

Data Encryption Standard. Data Encryption Standard. DES developed in 1970’s Based on IBM Lucifer cipher U.S. government standard DES development was controversial NSA was secretly involved Design process not open Key length was reduced Subtle changes to Lucifer algorithm. DES Numerology.

386 views • 12 slides

Data Encryption Standard (DES). Developed in 1970s for the U.S. Gov’t, intended for use by the public Uses combinations of substitution and transposition (16 cycles) Uses a 64 bit key (8 bits for check digits) to encrypt blocks of 64 bits

310 views • 12 slides

Data Encryption Standard - DES

DES was developed as a standard for communications and data protection by an IBM research team, in response to a public request for proposals by the NBS - the National Bureau of Standards (which is now known as NIST). Data Encryption Standard - DES. Lecture Plan. Review of Encryption

1.51k views • 63 slides

Data Encryption Standard (DES). Most widely used block cipher in the world Adopted in 1977 by National Bureau Standards (NBS) Encrypts 64-bit data using 56-bit key Has widespread use Has been considerable controversy over its security. DES. Details of A Single Iteration.

2.14k views • 35 slides

Advance Encryption Standard

Advance Encryption Standard. Topics. Origin of AES Basic AES Inside Algorithm Final Notes. Origins. A replacement for DES was needed Key size is too small Can use Triple-DES – but slow, small block US NIST issued call for ciphers in 1997 15 candidates accepted in Jun 98

693 views • 41 slides

713 views • 63 slides

Performance Analysis of Data Encryption Standard DES

Information security is becoming much more important in data storage and transmission with the fast progression of digital data exchange in electronic way. Cryptography has come up as a solution which plays a vital role in information security system against malicious attacks. The cryptography is most important aspect of communications security and becoming an important building block for computer security. This security mechanism uses some algorithms to scramble data into unreadable text which can be only being decoded or decrypted by party those possesses the associated key. To protect sent messages that some of the most commonly used cryptography methods with private key based algorithm are LOKI 89, 91, 97 , DES, triple DES, AES, Blowfish, etc. These algorithms also include several computational issues as well as the analysis of DES algorithm. The main features that specify and differentiate one algorithm from another are the ability to the speed of encryption and decryption of the input plain text. This paper analyzes the private key based algorithm DES and LOKI91 by computing index of coincidence IC and time efficiency. Thida Soe | Soe Soe Mon | Khin Aye Thu "Performance Analysis of Data Encryption Standard (DES)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd26650.pdf Paper URL: https://www.ijtsrd.com/computer-science/computer-security/26650/performance-analysis-of-data-encryption-standard-des/thida-soe

76 views • 5 slides

What Is Data Encryption? Definition, Types, and Best Practices

Imagine you wanted to send a text message and be sure that no one except the intended recipient could read it. How would you do it? In a word: encryption.

Encryption converts regular text into a coded language that only someone with the right key can decode. It is used to secure communication, protect sensitive information, and prevent data breaches. Encryption is routinely used in daily life in ways you may not even notice, such as securing your credit card information during online purchases .

This article will explore encryption theories, types, and practical uses that help keep our digital world safe.

What Is Encryption?

Encryption is the process of encoding readable text into secure code. It’s a fundamental technology for securing information against outside access.

Historically, it has been used in spycraft and wartime for sensitive communications, but the more familiar applications today center on online data.

Personal information, financial data, and confidential documents shared online must be encrypted to secure them properly against cybercrime.

Encryption uses a formula called a “cipher” or an encryption algorithm, which ensures that anyone who tries to intercept information communicated across a digital space cannot read its true contents.

Encryption unlocks information for the intended recipient alone by using a special key that only their device will have. Anyone without this key will be unable to properly decrypt the message.

What Is Encryption in Cybersecurity?

Encryption is a pillar of many cybersecurity protocols and procedures. For example, if cyber attackers breach your network, easily-accessed personal and confidential information could be at risk of theft and either held for ransom or sold to the highest bidder.

However, if your device stores only encrypted information, the data that the hackers access will be rendered useless, as they cannot read it without the correct secret key.

Many regulations now require encryption as part of their set of cybersecurity standards. This is especially true for organizations that store Private Personal Information (PPI), such as financial and healthcare institutions.

What Is the Purpose of Data Encryption?

The fundamental purpose of encryption is to protect sensitive information being seen by those with unauthorized access. Encrypting communications helps you maintain data confidentiality during transmission and storage.

This is especially important to people and organizations whose private data is particularly sensitive or confidential, such as banks, healthcare providers, military organizations, power and energy companies, and insurance providers.

Data encryption allows these types of organizations to hold onto personal information in a secure way that will not compromise your identity. Regular individuals may want to protect their information, too.

Encryption prevents your information from being tampered with. In a digital age that lacks trust, encryption can make you feel more secure that the information you send and receive is authentic. Improving data integrity and authenticity is another of encryption’s core benefits.

Types of Data Encryption

There are many different types of encryption, each with varying levels of security and usability. Let’s explore the most common forms of encryption and the benefits and disadvantages of each of them.

Symmetric Encryption

Symmetric encryption is when a single encryption key is used to encrypt and decrypt information. This means that the key must be shared with both the person sending the information and the person receiving the information.

Symmetric encryption can be created using a block algorithm or a stream algorithm. Using a block algorithm, the system utilizes a unique secret security key  to encrypt set lengths of bits in blocks. On the other hand, a stream algorithm does not retain encrypted data in its memory but encrypts it as it flows in.

The benefits of symmetric encryption are that it is a very fast form of encryption and is good to use for bulk encryption needs. However, symmetric keys are difficult to manage at a mass scale and can reduce the security of transmitted messages if their key information has been leaked.

Asymmetric Encryption

Unlike symmetric encryption, asymmetric encryption uses one key for encrypting information and a separate key for decryption.

Asymmetric encryption is also known as public-key encryption, as the key to encryption information is available publicly and can be used by many people. Meanwhile, the person receiving the message has a corresponding private key used to decrypt the message.

Asymmetric encryption is used in many fundamental internet protocols. One application is used in Transport Layer Security (TLS) and Secure Sockets Layer ( SSL ).

Another common use of asymmetric encryption is in software that requires a connection to be established over an insecure network. By encrypting the information communicated across that connection, browsers and other digital communication devices can maintain security.

It’s important to note that public keys used in encryption do not hide metadata, meaning that information about which computer the message came from or when it was sent will be available.

It is also a much slower form of encryption. Interestingly, one of its common uses is to send the symmetric encryption key to the receiver of a message.

Hashing is a process for applying an algorithm that transforms input data into a fixed-length output. The same input will always result in the same hash string output, so comparing hash results is useful for verifying data integrity.

For security purposes, sensitive information can be hashed and stored in ‘hash tables,’ such as when an organization stores passwords in hashed form rather than in plaintext.

Hashing is frequently mislabelled as a type of encryption. While it is a cryptography tool, it is not considered encryption, as hashed information can be recreated without a secret key.

What Is an Encryption Algorithm?

Regardless of whether you are using symmetric or asymmetric encryption, the secret keys exchanged must use an algorithm to encrypt information.

These algorithms are created using a mathematical formula or a set of rules. Using the specific mathematical formula that has been created for that type of encryption, the algorithm converts plaintext into cipher text. Utilizing standardized algorithms ensures that text can always be decrypted in a predictable way.

There are several different common encryption algorithms, each used for different purposes, industries, or required levels of security.

What are Common Encryption Algorithms?

1. data encryption standard (des).

The Data Encryption Standard (DES) was developed by IBM in the 1970s and was first used by the United States government to send and receive private information.

It is a symmetric-key algorithm for encrypting electronic data. It uses a block algorithm with 56 bits to encrypt information.

As it is an older form of encryption, it is no longer considered secure for most cryptographic functions today. As computers evolved, the 56 bits were not enough to securely protect information because newer devices’ improved computing power could crack the DES algorithm quickly.

However, the DES algorithm paved the way for stronger and more advanced encryption algorithms to follow it.

2. Triple Data Encryption Standard (3DES)

One of the first attempts to improve on the original DES encryption model produced the Triple Data Encryption Standard (3DES).

3DES is also a symmetric encryption block algorithm. Its block cipher uses 64-bit blocks to encrypt information. However, instead of stopping there as DES does, it goes through three rounds of encryption to provide a higher level of security that further hides the original message.

Even so, the National Institute of Standards and Technology (NIST) has stated that as of the end of 2023, 3DES is depreciated. That means while it can still be used for legacy software, it cannot be used to create new cyber-secure applications.

3. Advanced Encryption Standards (AES)

Like DES, Advanced Encryption Standards (AES) is a symmetric encryption algorithm that uses a block cipher to encrypt and decrypt information.

AES differs mainly in its available key sizes. Data can be encrypted using AES with three different key sizes: 128-bit, 192-bit, or 256-bit. These longer bit sizes make it much stronger than DES, as even today’s computers would take an impossibly long time to crack the algorithm. As such, it is used widely and is considered to be one of the most secure encryption methods available today.

AES is used in many common applications, including file encryption, wireless security, processor security, and cloud security protocols such as SSL and TLS.

4. RSA Encryption

Rivest-Shamir-Adleman (RSA) encryption, named after the surnames of its creators, is a type of asymmetric encryption, meaning that you need both a private and public key in order to decrypt the transmitted information.

RSA works by multiplying two very large prime numbers together and relying on the improbability of hackers being able to guess which exact two numbers created the new one.

It also uses extremely large bits to encrypt information, including 1,024-, 2,048-, and sometimes 4,096-bit encryption.

RSA can be applied to different use cases by changing the setup of private and public keys. In the more common configuration, the public key is used for encryption and a private key is required to decrypt the data. This arrangement is commonly to send private information and ensure that it cannot be read if intercepted.

However, RSA encryption can also be used in the reverse arrangement, where the private key encrypts data and the public key decrypts. This method is used to confirm the sender’s authenticity rather than to hide information.

5. Blowfish Encryption

Blowfish encryption is another symmetric-key block cipher algorithm. It was created in the 1990s to replace DES. It can use variable key sizes ranging from 32-bit to 448-bit.

What is distinct about Blowfish is that it is an unpatented algorithm, meaning it can be used by anyone without having to pay for its use. For this reason, it is widely used in software and internet security applications.

Blowfish is slower than some other types of block algorithms, which in some use cases is to its benefit.

6. Twofish Encryption, Threefish Encryption, and More

A demand for increased security has spawned many new encryption algorithms, including Twofish, Threefish, and Macguffin, just to name a few. Each algorithm uses its own unique mathematical formula, and each has its own benefits and drawbacks.

The most important thing is to ensure that the tools you use to encrypt data meet today’s highest standards from the NIST and other regulatory security bodies.

How Is Encryption Used?

Encryption is used every day to protect a variety of data transactions online. You may not even realize some places where it’s used.

Let’s explore the common day-to-day use cases of encryption.

File Encryption

If you’re sending and receiving sensitive information through files such as Word documents, PDFs, or images, file encryption can be used to protect the information contained in those documents.

Using one of the algorithms we discussed in the previous section or another type of encryption method, files can be encoded data in a way that makes them unreadable without a decryption key.

This process provides protection against unauthorized access, theft, and data breaches. There are tools such as Filezilla  that allow you to encrypt the documents that you store and send. Making this part of your regular document-sharing process can keep your information much safer.

Disk Encryption

While it’s less common these days, information is sometimes stored and shared on physical devices such as hard drives or USB drives. Ensuring these physical devices have proper cybersecurity procedures implemented in their distribution will help keep the information on them out of the hands of hackers.

Disk encryption uses encryption algorithms to scramble the data on physical storage devices, and only those with the correct secret key can unscramble it. Whereas file encryption is applied to individual files, disk encryption can be applied across the entire disk structure to prevent access to all the files within.

By encrypting your disks, you can protect sensitive data from cyber-attacks or from information falling into the wrong hands.

Email Encryption

A very common and important use of encryption is email encryption.

Email encryption protects the content of your email from being viewed by unauthorized persons. Even if your emails are intercepted by an attacker, encryption can prevent them from being understood by the middleman. Email encryption can also help businesses comply with data protection regulations and maintain the confidentiality of their clients.

When deciding on a secure email provider,  you should ensure that the one you choose offers strong encryption capabilities.

Encryption in the Cloud

Cloud security  is one of the most important tools in cybersecurity today. Almost everything we do on the web today is stored on servers in the cloud. But when it comes to security, its ease of access is as much of a drawback as it is a benefit.

That’s why cloud encryption is integral to securing data. Encryption in the cloud involves encrypting data before storing it on a cloud server, making it more difficult for hackers or unauthorized users to access it. The encryption keys are typically managed by the cloud provider or the user.

End-to-End Encryption

If you’re using messaging apps today, it’s likely you’re using end-to-end encryption without even realizing it. End-to-end encryption ensures that only the sender and intended recipient can access the content of a text message.

Many popular messaging apps, such as WhatsApp and Signal, use end-to-end encryption to protect their users’ communications.

Encryption has become commonplace in almost all aspects of modern digital life and for good reasons. Let’s explore its main benefits below.

Benefits of Data Encryption

Compliance with Data Protection Regulations

Many organizations and entities are required to be compliant with various data protection standards. Many of these regulations require sensitive data to be stored and transmitted using encryption standards.

One example of this is PCI compliance , which is required by all ecommerce stores. This standard ensures that credit card data is stored and transmitted securely using encryption.

Understanding whether the data you have is properly encrypted or not can save you from fines, lawsuits, or denied insurance claims being found non-compliant. Be sure to check with IT security personnel to ensure you’re meeting the required standards.

Remote Work Protection

While remote work has its many benefits, it can create additional risks when it comes to transmitting sensitive information. With remote work, there’s more information being transmitted over email and instant messaging, all of which are susceptible to interception.

Even though many organizations implement VPNs, firewalls , and other cybersecurity procedures to keep out attackers, the information behind them should still be encrypted in case those protections are breached. Data encryption provides a layer of protection for users working remotely by ensuring that the data is sent in encrypted form and can only be accessed by authorized personnel.

Encryption prevents attackers from capturing network traffic containing sensitive information or exploiting isolated connections over the internet.

Increased Consumer Trust

Using encryption beyond its regulated requirements is also a good idea for many businesses. Being able to promise customers that their data and information will be securely protected with encryption may make them more likely to use your product over another that does not offer similar promises. It shows clients that your company takes data privacy seriously and is committed to protecting its customers.

Furthermore, by using encryption whenever possible, you also reduce the likelihood of being affected by a data or compliance breach. Cyber attacks or compliance violations can cause serious reputational damage to your business and hurt your bottom line.

By using encryption, you can avoid costly and harmful data breaches.

Can Encrypted Data Be Hacked?

Encryption provides strong protection against unauthorized data access, but it is not foolproof. As we’ve explored, some encryption methods are more secure than others. Legacy algorithms are considered less secure because they do not apply enough permutations to avoid being broken by modern-day computers. This problem will increase as computational power continues to increase, and today’s strong encryption could become tomorrow’s weak encryption.

Additionally, there is always a danger that encryption keys can be stolen or lost. Human error plays a role, as encryption keys may be accidentally shared or compromised in other ways.

You should also be aware that encryption also does not categorically protect against every type of cybersecurity risk. Cybercriminals can try to attack your domain from other angles, such as through DDoS attacks , DNS poisoning , phishing, and so on. Therefore, you should harden your security posture with additional tools beyond encryption to ensure your sites and web applications are fully protected.

While these risks do exist, it’s important to remember that cybersecurity is best when layered upon multiple types of security. Encrypted data is still better than unencrypted data, especially if it’s combined with additional types of security procedures to ensure the encryption secrets remain hidden.

Data Encryption FAQs

Encryption is a wide-ranging topic. If you’re interested in diving deeper, here are some commonly asked questions about encryption:

Encryption vs. Tokenization: What’s the Difference?

While encryption is a process that turns intelligible information unintelligible and then back again, tokenization cannot be reversed.

The process of tokenization involves removing key data points from an organization’s data storage and replacing them with placeholder information. Meanwhile, the correct information that was removed is stored elsewhere so as not to be included in the information a hacker may steal if the company is breached.

In Transit vs. At Rest Encryption: What’s the Difference?

The key to understanding the difference between these two types of encryption is understanding the two common states that data can exist in – at rest or in transit.

Data at rest is what we call data that is stored somewhere, on a hard drive, USB, or other digital storage space. This data is in a fixed location, and it doesn’t move. Data in transit is data that is being communicated or transferred. It’s moving between computers, networks, or across the internet. Encryption in transit involves scrambling the information while it’s being moved from one place to another.

Encryption at rest is the process of protecting the data while it is stored at its physical location.

Ensuring your information is encrypted when it is in both states is crucial to protecting the private data of your clients and your company.

What are Encryption Backdoors?

The key to understanding encryption backdoors is to remember that many cybersecurity protocols are built with the knowledge that humans are prone to errors and, on occasion, need a backup plan.

Like the spare house key, you can hide under the mat, encryption backdoors are built-in bypasses that allow authorized personnel to undo the process of encryption in the case of emergencies. However, when not properly protected, these same built-in bypasses can be exploited by attackers and used as backdoors into your encrypted information.

Encryption is a vital tool in protecting our sensitive information and keeping it safe from cybercriminals. Whether personal data like credit card information or business secrets, encryption ensures that only authorized individuals can access it.

As a website owner, it’s important to understand the different types of encryption, which methods you need to implement to remain in compliance, and how to use them properly to ensure maximum security.

As technology advances, encryption will continue to play a crucial role in safeguarding our data. If you’re curious about how to implement encryption on your web-hosted site, contact us  today.

Related Articles

How To Test Your WordPress Site for Functionality, Speed, and Security

20 Work from Home Security Tips to Protect Your Data

The Best WordPress Security Plugins To Lock Out Malicious Threats

• My presentations

Auth with social network:

Download presentation

We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!

Presentation is loading. Please wait.

Data Encryption Standard (DES)

Published by 은미 우 Modified over 4 years ago

Similar presentations

Presentation on theme: "Data Encryption Standard (DES)"— Presentation transcript:

Cryptography and Network Security Chapter 3

Simplified DES CS-480b Network Security Dick Steflik.

ICS 454: Principles of Cryptography

ECE454/CS594 Computer and Network Security Dr. Jinyuan (Stella) Sun Dept. of Electrical Engineering and Computer Science University of Tennessee Fall 2011.

Data Encryption Standard (DES). Symmetric Cryptography  C = E(P,K)  P = D(C,K)  Requirements  Given C, the only way to obtain P should be with  the.

The Digital Encryption Standard CSCI 5857: Encoding and Encryption.

Network Security Lecture 14 Presented by: Dr. Munam Ali Shah.

Feistel Cipher Structure

Cracking DES Cryptosystem A cryptosystem is made of these parts: Two parties who want to communicate over an insecure channel An encryption algorithm that.

1 Lect. 7 : Data Encryption Standard. 2 Data Encryption Standard (DES)  DES - History 1976 – adopted as a federal standard 1977 – official publication.

DES Algorithm Data Encryption Standard. DES Features Block cipher, 64 bits per block 64-bit key, with only 56 bits effective ECB mode and CBC mode.

Data Encryption Standard CS-471/971. Category of Standard: Computer Security. Explanation: The Data Encryption Standard (DES) specifies a FIPS approved.

Data Security and Encryption (CSE348) 1. Lecture # 7 2.

Block Cipher- introduction

Simplified DES.

CST 312 Pablo Breuer. A block of plaintext is treated as a whole and used to produce a ciphertext block of equal length Typically a block size of 64 or.

Information and Computer Security CPIS 312 Lab 6 & 7 1 TRIGUI Mohamed Salim Symmetric key cryptography.

1 CPCS425: Information Security (Topic 5) Topic 5  Symmetrical Cryptography  Understand the principles of modern symmetric (conventional) cryptography.

Lecture 4 Data Encryption Standard (DES) Dr. Nermin Hamza

Provides Confidentiality

About project

© 2024 SlidePlayer.com Inc. All rights reserved.

• Partner Login
• Find a Partner
• Become a Partner
• Global Partner Program
• Technology Partners
• Find a Distributor
• Support Login
• Professional Services
• Work With Us
• Forcepoint Trust Hub

You are here

What is Data Encryption?

• Data Encryption Defined

Data encryption is a security method where information is encoded and can only be accessed or decrypted by a user with the correct encryption key. Encrypted data, also known as ciphertext, appears scrambled or unreadable to a person or entity accessing without permission.

• How Data Encryption is Used

Data Encryption is used to deter malicious or negligent parties from accessing sensitive data. An important line of defense in a cybersecurity architecture, encryption makes using intercepted data as difficult as possible. It can be applied to all kinds of data protection needs ranging from classified government intel to personal credit card transactions. Data encryption software, also known as an encryption algorithm or cipher, is used to develop an encryption scheme which theoretically can only be broken with large amounts of computing power.

Upgrade Your Data Security with Forcepoint Data Loss Prevention (DLP)

• Types of Encryption – Symmetric and Asymmetric

Encryption is often applied in two different forms, a symmetric key or an asymmetric key. A symmetric key, or secret key, uses one key to both encode and decode the information. This is best used for one to one sharing and smaller data sets. Asymmetric, or public key cryptography, uses two linked keys – one private and one public. The encryption key is public and can be used by anyone to encrypt. The opposite key is kept private and used to decrypt.

• How to Protect Your Data

Data encryption is a given in today’s world of cybersecurity. Hardly any responsible security programs are without it. To be ensure your data is safe, educate your organization on best practices for data use and sharing.

For the best in today’s data security solutions, get Forcepoint’s Dynamic Data Protection a proactive cutting edge approach that uses individualized adaptive security measures to replace broad sweeping rules that slow down your employees.

Webcast Modernize Your Data Protection

Webcast Securing Data in Cloud Apps with Agentless DLP

Datasheet Competitive DLP Risk-Adaptive Protection Feature Comparison

Datasheet DLP Feature Comparison Chart

In This Doc:

The practical guide to data security everywhere, more from cyber edu.

What is Data Security Posture Management? DSPM Meaning

Cloud Data Protection Importance, Benefits and Solutions

What Is SASE Technology?

• Popular Categories

Powerpoint Templates

Icon Bundle

Kpi Dashboard

Professional

Business Plans

Swot Analysis

Gantt Chart

Business Proposal

Marketing Plan

Project Management

Business Case

Business Model

Cyber Security

Business PPT

Digital Marketing

Digital Transformation

Human Resources

Product Management

Artificial Intelligence

Company Profile

Acknowledgement PPT

PPT Presentation

Reports Brochures

One Page Pitch

Interview PPT

All Categories

Powerpoint Templates and Google slides for Encryption

Save your time and attract your audience with our fully editable ppt templates and slides..

Item 1 to 60 of 868 total items

• You're currently reading page 1

This slide represents the importance of data encryption in cloud security and what type of data should always be encrypted through private keys.Introducing Cloud Security Checklist Data Encryption Cloud Information Security to increase your presentation threshold. Encompassed with three stages, this template is a great option to educate and entice your audience. Dispence information on Future Evaluation, Device Is Detected, Change Activities using this template. Grab it now to reap its full benefits.

This slide represents data encryption model for effective information security. It includes data encoding, data decoding, backup repository etc.Present the topic in a bit more detail with this Data Encryption Model For Effective Information Security Strategy SS. Use it as a tool for discussion and navigation on Backup Repository, Encrypted Data, Proper Decryption. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide exhibits the role of encryption technology and IoT that assists businesses and organizations to protect the confidentiality of digital data storage and transmission. Major elements are authentication, data privacy, compliance management, and security. Presenting our set of slides with Enterprise Data Encryption IoT Cybersecurity Technology. This exhibits information on four stages of the process. This is an easy to edit and innovatively designed PowerPoint template. So download immediately and highlight information on Authentication, Privacy, Management.

This slide covers data protection and encryption framework in multi cloud with multi layer protection and data management. Deliver an outstanding presentation on the topic using this Data Protection Multi Cloud Data Encryption Cloud Architecture Review. Dispense information and present a thorough explanation of Object Store Appliance, Multi Cloud Data Encryption, Automated Encryption, Device Control using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This colourful PowerPoint Illustration is perfect for illustrating the concept of cloud cryptography. It features a cloud with a lock and key, demonstrating the secure encryption of data stored in the cloud. Its a great way to visually explain the power of cloud cryptography.

Give your next presentation a sophisticated, yet modern look with this 100 percent editable Encryption key protection colored icon in powerpoint pptx png and editable eps format. Choose from a variety of customizable formats such as PPTx, png, eps. You can use these icons for your presentations, banners, templates, One-pagers that suit your business needs.

Presenting, internet of things encryption layout PowerPoint slide. Easily personalize this layout to choose the PPT layout, font, text, color, and design as per your way. This determined PPT design can be practiced by professionals for exhibiting their data modeling and banking applications related presentations. This template is well cooperative with Google Slides and can be easily saved into pdf or jpg formats. These pictures graphics do not pixelate when forecasted on a widescreen and are accessible in 16:9 fullscreen version.

Presenting our Symmetric Encryption Vs Asymmetric Encryption Ppt Powerpoint Presentation Example Cpb PowerPoint template design. This PowerPoint slide showcases four stages. It is useful to share insightful information on Symmetric Encryption VS Asymmetric Encryption This PPT slide can be easily accessed in standard screen and widescreen aspect ratios. It is also available in various formats like PDF, PNG, and JPG. Not only this, the PowerPoint slideshow is completely editable and you can effortlessly modify the font size, font type, and shapes according to your wish. Our PPT layout is compatible with Google Slides as well, so download and edit it as per your knowledge.

Presenting bitcoin encryption powerpoint slide icon. This is a bitcoin encryption powerpoint slide icon. This is a one stage process. The stages in this process are block chain, bitcoin wallet, list of record, cryptocurrency.

Presenting complete encryption powerpoint slide backgrounds. This is a complete encryption powerpoint slide backgrounds. This is a three stage process. The stages in this process are secure email, it security structure, cyber security policies, encrypted metadata.

This slide highlights the role of encryption technology which is used by business and organisation to protect the confidentiality of digital data storage and transmission. Key components are authentication, privacy, regulatory compliance and security. Presenting our set of slides with name Business Data Encryption Security Technology. This exhibits information on four stages of the process. This is an easy-to-edit and innovatively designed PowerPoint template. So download immediately and highlight information on Privacy, Authentication, Regulatory Compliance, Security.

This colourful PowerPoint Illustration is perfect for data security presentations. It features a padlock in the centre of a blue and green circle, symbolizing the protection of confidential information. Use it to emphasize the importance of data security in your presentation.

This slide covers business application layers with security and encryption with data access logic, presentation logic and business logic. Presenting our well structured Business Application Layers With Security And Encryption. The topics discussed in this slide are Business Application, Layers Security, Encryption. This is an instantly available PowerPoint presentation that can be edited conveniently. Download it right away and captivate your audience.

Introducing our premium set of slides with Data Encryption And Protection Standards Icon. Ellicudate the three stages and present information using this PPT slide. This is a completely adaptable PowerPoint template design that can be used to interpret topics like Data Encryption And Protection, Standards Icon. So download instantly and tailor it with your information.

This coloured powerpoint Illustration is perfect for any presentation on cyber security safety. It features a bright, eye catching design that will attract attention and help you illustrate your message. Ideal for use in educational and business settings.

This coloured PowerPoint Illustration depicts a data security concept, with a padlock and a key to represent secure data protection. It is ideal for presentations on data protection, cyber security, and other related topics.

This coloured PowerPoint Illustration provides a visually appealing representation of global data security. It is perfect for presentations and other documents to illustrate the importance of protecting data across the world.

This coloured PowerPoint Illustration is designed to represent healthcare cyber security. It features a blue shield with a white cross in the center, symbolizing protection against malicious cyber threats. It is a perfect visual aid for any presentation on the importance of cyber security in healthcare.

Presenting this set of slides with name Difference Compression Encryption Ppt Powerpoint Presentation Ideas Graphics Example Cpb. This is an editable Powerpoint five stages graphic that deals with topics like Difference Compression Encryption to help convey your message better graphically. This product is a premium product available for immediate download and is 100 percent editable in Powerpoint. Download this now and use it in your presentations to impress your audience.

Presenting this set of slides with name Email Encryption Ppt Powerpoint Presentation Pictures Background Designs Cpb. This is an editable Powerpoint four stages graphic that deals with topics like Email Encryption to help convey your message better graphically. This product is a premium product available for immediate download, and is 100 percent editable in Powerpoint. Download this now and use it in your presentations to impress your audience.

Presenting our set of slides with Blockchain Security Icon With Encryption Symbol. This exhibits information on one stage of the process. This is an easy-to-edit and innovatively designed PowerPoint template. So download immediately and highlight information on Blockchain Security Icon With Encryption Symbol.

Enthrall your audience with this Encryption For Data Privacy In Digital Age IT Powerpoint Presentation Slides. Increase your presentation threshold by deploying this well-crafted template. It acts as a great communication tool due to its well-researched content. It also contains stylized icons, graphics, visuals etc, which make it an immediate attention-grabber. Comprising two hundred fourty one slides, this complete deck is all you need to get noticed. All the slides and their content can be altered to suit your unique business setting. Not only that, other components and graphics can also be modified to add personal touches to this prefabricated set.

This complete deck covers various topics and highlights important concepts. It has PPT slides which cater to your business needs. This complete deck presentation emphasizes Encryption Implementation Strategies Powerpoint Presentation Slides and has templates with professional background images and relevant content. This deck consists of total of one hundred eight slides. Our designers have created customizable templates, keeping your convenience in mind. You can edit the color, text and font size with ease. Not just this, you can also add or delete the content if needed. Get access to this fully editable complete presentation by clicking the download button below.

Enthrall your audience with this Cloud Data Encryption Implementation Plan Powerpoint Presentation Slides. Increase your presentation threshold by deploying this well-crafted template. It acts as a great communication tool due to its well-researched content. It also contains stylized icons, graphics, visuals etc, which make it an immediate attention-grabber. Comprising sixty eight slides, this complete deck is all you need to get noticed. All the slides and their content can be altered to suit your unique business setting. Not only that, other components and graphics can also be modified to add personal touches to this prefabricated set.

If your company needs to submit a Encryption Framework Upgradation Proposal Powerpoint Presentation Slides look no further. Our researchers have analyzed thousands of proposals on this topic for effectiveness and conversion. Just download our template add your company data and submit to your client for a positive response.

Deliver a lucid presentation by utilizing this End To End Encryption Powerpoint PPT Template Bundles. Use it to present an overview of the topic with the right visuals, themes, shapes, and graphics. This is an expertly designed complete deck that reinforces positive thoughts and actions. Use it to provide visual cues to your audience and help them make informed decisions. A wide variety of discussion topics can be covered with this creative bundle such as End-To-End Encryption, Chat Privacy, Whatsapp Encryption, Encryption Challenges Solutions, Business Trends Encryption, Encryption Backup Systems. All the Twenty slides are available for immediate download and use. They can be edited and modified to add a personal touch to the presentation. This helps in creating a unique presentation every time. Not only that, with a host of editable features, this presentation can be used by any industry or business vertical depending on their needs and requirements. The compatibility with Google Slides is another feature to look out for in the PPT slideshow.

Engage buyer personas and boost brand awareness by pitching yourself using this prefabricated set. This Encryption Powerpoint PPT Template Bundles is a great tool to connect with your audience as it contains high-quality content and graphics. This helps in conveying your thoughts in a well-structured manner. It also helps you attain a competitive advantage because of its unique design and aesthetics. In addition to this, you can use this PPT design to portray information and educate your audience on various topics. With fourteen slides, this is a great design to use for your upcoming presentations. Not only is it cost-effective but also easily pliable depending on your needs and requirements. As such color, font, or any other design component can be altered. It is also available for immediate download in different formats such as PNG, JPG, etc. So, without any further ado, download it now.

Presenting Data Encryption in Ransomware Attacks. This PPT presentation is thoroughly researched by the experts, and every slide consists of appropriate content. It is well crafted and designed by our PowerPoint specialists. Suitable for use by managers, employees, and organizations. You can edit the color, text, icon, and font size to suit your requirements. The PPT also supports Google Slides. Even Premium Customer Support is also available. Download now and present with confidence.

Presenting Lack of Encryption as an Information Security Threat. This PPT presentation is thoroughly researched and each slide consists of appropriate content. Designed by PowerPoint specialists, this PPT is fully customizable alter the colors, text, icons, and font size to meet your needs. Compatible with Google Slides and backed by superior customer support. Download today to deliver your presentation confidently.

Presenting Encryption as a Type of Application Security. This PPT presentation is meticulously researched and each slide consists of relevant content. Designed by SlideTeams PowerPoint experts, this PPT is fully customizable alter the colors, text, icons, and font size to meet your requirements. Compatible with Google Slides and backed by excellent customer support. Download to present with poise and assurance.

Engage buyer personas and boost brand awareness by pitching yourself using this prefabricated set. This Blockchain Icon Symbol Circle Computers Encryption Security Technology is a great tool to connect with your audience as it contains high-quality content and graphics. This helps in conveying your thoughts in a well-structured manner. It also helps you attain a competitive advantage because of its unique design and aesthetics. In addition to this, you can use this PPT design to portray information and educate your audience on various topics. With twelve slides, this is a great design to use for your upcoming presentations. Not only is it cost-effective but also easily pliable depending on your needs and requirements. As such color, font, or any other design component can be altered. It is also available for immediate download in different formats such as PNG, JPG, etc. So, without any further ado, download it now.

Introduce your topic and host expert discussion sessions with this Firewall Enterprise Protection Security Installation Encryption. This template is designed using high-quality visuals, images, graphics, etc, that can be used to showcase your expertise. Different topics can be tackled using the twelve slides included in this template. You can present each topic on a different slide to help your audience interpret the information more effectively. Apart from this, this PPT slideshow is available in two screen sizes, standard and widescreen making its delivery more impactful. This will not only help in presenting a birds-eye view of the topic but also keep your audience engaged. Since this PPT slideshow utilizes well-researched content, it induces strategic thinking and helps you convey your message in the best possible manner. The biggest feature of this design is that it comes with a host of editable features like color, font, background, etc. So, grab it now to deliver a unique presentation every time.

This slide represents the dashboard which can be utilized by organization to monitor cloud security. It includes overall progress, number of critical risks identified, initiatives, incident management, compliance, patches, highest number of critical incidents, etc. Deliver an outstanding presentation on the topic using this Data Encryption Performance Tracking Dashboard Cloud Data Encryption. Dispense information and present a thorough explanation of Progress, Critital Risks Identified using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide shows the cost breakup of cloud data encryption implementation training. The purpose of this slide is to highlight the estimated cost of various training components, such as instructors cost, training material cost, etc. Deliver an outstanding presentation on the topic using this Budget For Cloud Data Encryption Implementation Training Cloud Data Encryption. Dispense information and present a thorough explanation of Components, Estimated Cost using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide demonstrates the process for client side encryption with keys managed by Key Management System. The components included are plain text data key, cipher blob data key, encryption algorithm, encrypted object data, etc. Deliver an outstanding presentation on the topic using this Client Side Encryption With Kms Managed Keys Cloud Data Encryption. Dispense information and present a thorough explanation of Encryption Process, Encryption Algorithm using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide demonstrates the process for server side encryption with keys managed by Key Management System. The components included are plain text data key, customer managed key, encryption algorithm, encrypted object data, encrypted data key, etc. Present the topic in a bit more detail with this Server Side Encryption With Kms Managed Keys Cloud Data Encryption. Use it as a tool for discussion and navigation on Encryption Process, Customer Managed Key. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide summarizes data security attacks across different organizational departments, such as sales, IT department, finance, marketing, operations, etc. The outlined attacks are data interception, unauthorized access, data breaches, etc. Deliver an outstanding presentation on the topic using this Statistics Of Cloud Data Security Attacks In Organization Cloud Data Encryption. Dispense information and present a thorough explanation of Data Interception, Unauthorized Access using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide summarizes data security attacks across different organizational departments, such as human resources, IT department, finance, marketing, operations, etc. The outlined attacks are phishing scams, malware infections, data breaches, etc. Present the topic in a bit more detail with this Encryption Implementation Strategies Overview Of Data Privacy Attacks In Different Departments. Use it as a tool for discussion and navigation on Human Resources, IT Department, Finance, Marketing, Operations. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide discusses the procedure for implementing encryption in applications. The steps mentioned in this slide are identify sensitive data, assess encryption requirements, choose encryption algorithms, implement data encryption at rest, etc. Introducing Encryption Implementation Strategies Steps To Implement Encryption Techniques In Organization to increase your presentation threshold. Encompassed with six stages, this template is a great option to educate and entice your audience. Dispence information on Implement Data Encryption At Rest, Deploy Data Encryption In Transit, Assess Encryption Requirements, Choose Encryption Algorithms, using this template. Grab it now to reap its full benefits.

Introducing Table Of Contents For Encryption Implementation Strategies Ppt Ideas Examples to increase your presentation threshold. Encompassed with seven stages, this template is a great option to educate and entice your audience. Dispence information on Encryption Overview, States Of Data Protection, Current Situation Of Company, Encryption Implementation Strategies, using this template. Grab it now to reap its full benefits.

This slide depicts the financial loss experienced by the company in the last year due to different types of data privacy concerns. The purpose of this slide is to illustrate how increasing cyber scams have impacted the organization from april 2022 to april 2023. Present the topic in a bit more detail with this Encryption Implementation Strategies Cyber Attacks Impact On Organization In Previous Financial Year. Use it as a tool for discussion and navigation on Cyber Attacks, Financial Loss, Organization Experienced Loss, Data Privacy Concerns. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide represents the dashboard which can be utilized by organization to monitor cryptographic security. It includes overall progress, number of critical risks identified, initiatives, incident management, compliance, patches, highest number of critical incidents, etc. Present the topic in a bit more detail with this Encryption Implementation Strategies Data Encryption Performance Tracking Dashboard. Use it as a tool for discussion and navigation on Data Encryption Performance, Tracking Dashboard, Critical Incidents, Incident Management. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide showcases a collection of customer testimonials received from multiple clients who have graciously shared their feedback with the organization. It highlights the names and designations of the clients. Introducing Client Testimonials For Encryption Framework Upgradation Proposal to increase your presentation threshold. Encompassed with three stages, this template is a great option to educate and entice your audience. Dispence information on Client Testimonials, Encryption Framework, Customer Testimonials, using this template. Grab it now to reap its full benefits.

This slide outlines the process of upgrading the existing encryption framework to automated sequential cryptography system. The key components of this process involves original data, random key generator, cloud storage, private database, encryption and decryption process, etc. Present the topic in a bit more detail with this Our Process For Upgrading Existing Encryption Framework Upgradation Proposal. Use it as a tool for discussion and navigation on Encryption Framework, Cloud Storage, Private Database, Encryption And Decryption Process. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide represents an overview of the team structure for the encryption framework upgradation proposal. It highlights the names and designations of each team member in accordance with their position within the hierarchy. Increase audience engagement and knowledge by dispensing information using Our Team For Encryption Framework Upgradation Proposal. This template helps you present information on three stages. You can also present information on Our Team, Encryption Framework, Upgradation Proposal, Expertise And Achievements using this PPT design. This layout is completely editable so personaize it now to meet your audiences expectations.

This slide showcases the cost of the encryption upgradation proposal. It includes the different costs related to hardware, software, professional services, total service costs, software licenses, key management solutions, and contingency budgets. Present the topic in a bit more detail with this Pricing Summary For Encryption Framework Upgradation Proposal. Use it as a tool for discussion and navigation on Encryption Framework, Upgradation Proposal, Key Management Solutions, Contingency Budgets. This template is free to edit as deemed fit for your organization. Therefore download it now.

The purpose of this slide is to outline the major uses of Encryption-as-Service method in different domains. The key applications discussed in this slide are all-time security assurance, secure sensitive information and maintaining regulatory compliance. Introducing Applications As A Service In Organizations Encryption For Data Privacy In Digital Age It to increase your presentation threshold. Encompassed with three stages, this template is a great option to educate and entice your audience. Dispence information on Maintaining Regulatory Compliance, Secure Sensitive Information, Security Assurance, using this template. Grab it now to reap its full benefits.

This slide outlines the differences between symmetric and asymmetric encryption methods. The purpose of this slide is to compare the two main data encryption techniques known as symmetric key cryptography and asymmetric key cryptography. Present the topic in a bit more detail with this Comparison Symmetric And Asymmetric Encryption Encryption For Data Privacy In Digital Age It. Use it as a tool for discussion and navigation on Asymmetric, Encryption, Comparison. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide represents the dashboard which can be utilized by organization to monitor cryptographic security. It includes overall progress, number of critical risks identified, initiatives, incident management, compliance, patches, highest number of critical incidents, etc. Deliver an outstanding presentation on the topic using this Data Encryption Performance Tracking Dashboard Encryption For Data Privacy In Digital Age It. Dispense information and present a thorough explanation of Encryption, Performance, Dashboard using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide depicts the market analysis of the global cloud cryptography usage. The purpose of this slide is to showcase the market analysis based on regions such as North America, Europe, Asia Pacific, Middle East and Arica, and South America. Present the topic in a bit more detail with this Global Cloud Encryption Market Analysis Encryption For Data Privacy In Digital Age It. Use it as a tool for discussion and navigation on Regional Analysis, Segment Overview, Encryption. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide depicts the market analysis of the global hardware encryption usage. The purpose of this slide is to showcase the market analysis based on regions and applications such as commercial, residential, industrial and government agencies. Deliver an outstanding presentation on the topic using this Global Hardware Encryption Market Analysis Encryption For Data Privacy In Digital Age It. Dispense information and present a thorough explanation of Hardware, Encryption, Analysisusing the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide depicts the market analysis of the global network encryption usage. The purpose of this slide is to showcase the market analysis based on regions such as North America, Europe, Asia Pacific, Middle East and Arica, and South America. Present the topic in a bit more detail with this Global Network Encryption Market Analysis Encryption For Data Privacy In Digital Age It. Use it as a tool for discussion and navigation on Global Network, Encryption, Market Analysis. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide depicts the market analysis of the global software encryption usage. The purpose of this slide is to showcase the market analysis based on application segment view, such as disk encryption, database encryption, cloud encryption, etc. Deliver an outstanding presentation on the topic using this Global Software Encryption Market Analysis Encryption For Data Privacy In Digital Age It. Dispense information and present a thorough explanation of Software, Encryption, Market Analysis using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide demonstrates the recent cryptographic trends in cyber security. The purpose of this slide is to represent the current advances in encryption technology. These include homomorphic encryption, honey encryption and biometric encryption. Increase audience engagement and knowledge by dispensing information using Latest Advancements In Data Encryption Technology Encryption For Data Privacy In Digital Age It. This template helps you present information on three stages. You can also present information on Homomorphic Encryption, Honey Encryption, Biometric Encryption using this PPT design. This layout is completely editable so personaize it now to meet your audiences expectations.

This slide discusses the procedure for implementing encryption in applications. The steps mentioned in this slide are identify sensitive data, assess encryption requirements, choose encryption algorithms, implement data encryption at rest, etc. Introducing Steps To Implement Encryption Techniques In Organization Encryption For Data Privacy In Digital Age It to increase your presentation threshold. Encompassed with six stages, this template is a great option to educate and entice your audience. Dispence information on Identify Sensitive Data, Choose Encryption Algorithms, Deploy Data Encryption In Transit, using this template. Grab it now to reap its full benefits.

Deliver an outstanding presentation on the topic using this Table Of Contents For Encryption For Data Privacy In Digital Age. Dispense information and present a thorough explanation of Encryption Overview, Importance Of Encryption, Encryption Market And Trends using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide represents the different methods of encrypting information before sending it to the recipient. The types of encryption techniques discussed in this slide are Bring your own encryption BYOE, Encryption as a service EaaS, cloud storage encryption and deniable encryption, etc. Present the topic in a bit more detail with this Types Of Encryption To Secure Data Transmission Encryption For Data Privacy In Digital Age It. Use it as a tool for discussion and navigation on Data Transmission, Encryption, Deniable Encryption. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide illustrates the working process of homomorphic encryption by using algebraic principle of homomorphism. This slide also talks about the operations performed on ciphertext such as arithmetic, multiplication and Boolean. Present the topic in a bit more detail with this Understanding Homomorphic Encryption Technology Encryption For Data Privacy In Digital Age It. Use it as a tool for discussion and navigation on Homomorphic, Encryption, Technology. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide demonstrates the steps involved in encrypting and decrypting the keys using quantum cryptography. The steps involved are passing the photon to receiver, receive the photon, set the kay by analysing correct streams and verify the authenticity of data. Increase audience engagement and knowledge by dispensing information using Understanding Working Of Quantum Encryption Technology Encryption For Data Privacy In Digital Age It. This template helps you present information on four stages. You can also present information on Passing The Photon To Receiver, Receive The Photon, Verify Authenticity Of Data using this PPT design. This layout is completely editable so personaize it now to meet your audiences expectations.

The purpose of this slide is to highlight the fundamental properties and concepts of elliptic curves that serve as the foundation for the Elliptic Curve Cryptography ECC algorithm. The key components include single line intersection and horizontal symmetry. Present the topic in a bit more detail with this Using Elliptic Curves To Prioritize Cryptographic Strength Encryption For Data Privacy In Digital Age It. Use it as a tool for discussion and navigation on Prioritize, Cryptographic, Strength. This template is free to edit as deemed fit for your organization. Therefore download it now.

This slide discusses the procedure of RSA asymmetric encryption algorithm. The purpose of this slide is to outline the two steps of Rivest Shamir Adleman RSA algorithm, named as key generation, and function of encryption and decryption. Deliver an outstanding presentation on the topic using this Working Of Rivest Shamir Adleman Algorithm Encryption For Data Privacy In Digital Age It. Dispense information and present a thorough explanation of Algorithm, Ciphered Data, Decrypted Plaintext Data using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

Introducing our Encryption Techniques Icon For Securing Big Data Analytics set of slides. The topics discussed in these slides are Encryption Techniques, Securing Big Data Analytics. This is an immediately available PowerPoint presentation that can be conveniently customized. Download it and convince your audience.

This slide highlights the various types of encryption techniques utilized for protecting big data analytics. The purpose of this slide is to help the business safeguard sensitive information for preventing data breaches and information thefts. It includes quantum proof encryption, homomorphic encryption, etc. Introducing our premium set of slides with Types Of Encryption For Securing Big Data Analytics. Ellicudate the four stages and present information using this PPT slide. This is a completely adaptable PowerPoint template design that can be used to interpret topics like Homomorphic Encryption, Differential Privacy. So download instantly and tailor it with your information.

This PowerPoint icon features a colourful illustration of a lock, symbolizing the security of a wireless network. It is perfect for presentations on WIFI security, data protection, and cyber safety. Use this icon to emphasize the importance of secure networks and data privacy.

This Monotone powerpoint icon is perfect for any presentation on WIFI security. It features a classic black and white design with a laptop and a router, making it ideal for any modern business presentation. It is easy to use and can be used to illustrate the importance of secure WIFI connections.

This cheerful coloured powerpoint icon is perfect for illustrating file sharing. It features a cloud with an arrow pointing up and down, representing the transfer of files between two sources.

This Monotone Powerpoint Icon is perfect for representing File Sharing. It features a folder with an arrow pointing to the right, symbolizing the sharing of files from one device to another. It is simple, yet effective and can be used in any presentation.

This coloured powerpoint icon features a broken shield with a distressed texture. It is perfect for conveying a sense of vulnerability, fragility, or failure in presentations. It is available in a range of vibrant colours and can be used to highlight key points or draw attention to important concepts.

This Monotone Powerpoint icon depicts a broken shield, representing a lack of protection or security. It is perfect for conveying a sense of vulnerability, fragility, or danger in presentations. It can also be used to illustrate a lack of trust or loyalty.

Presenting Sales force Encrypted Fields Limitations In Powerpoint And Google Slides Cpb slide which is completely adaptable. The graphics in this PowerPoint slide showcase four stages that will help you succinctly convey the information. In addition, you can alternate the color, font size, font type, and shapes of this PPT layout according to your content. This PPT presentation can be accessed with Google Slides and is available in both standard screen and widescreen aspect ratios. It is also a useful set to elucidate topics like Salesforce Encrypted Fields Limitations. This well-structured design can be downloaded in different formats like PDF, JPG, and PNG. So, without any delay, click on the download button now.

Presenting Shield Encryption Salesforce Limitations In Powerpoint And Google Slides Cpb slide which is completely adaptable. The graphics in this PowerPoint slide showcase five stages that will help you succinctly convey the information. In addition, you can alternate the color, font size, font type, and shapes of this PPT layout according to your content. This PPT presentation can be accessed with Google Slides and is available in both standard screen and widescreen aspect ratios. It is also a useful set to elucidate topics like Shield Encryption Salesforce Limitations. This well-structured design can be downloaded in different formats like PDF, JPG, and PNG. So, without any delay, click on the download button now.

This is a coloured powerpoint icon of a WIFI symbol with a red cross over it, indicating the WIFI is off. Ideal for presentations or documents related to technology, networks and internet security.

This Monotone PowerPoint icon is perfect for presentations that need to communicate the concept of WIFI Off. It features a simple, minimalistic design that is easy to recognize and eye catching. The icon is available in both vector and raster formats for easy use.

This coloured powerpoint icon is perfect for illustrating the concept of digital signature. It is a high-resolution, vector-based graphic with a vibrant and eye-catching colour palette. It is an ideal choice for presentations, infographics, and other visuals.

This Monotone Powerpoint Icon on Digital Signature is a modern and stylish way to represent the concept of digital signature. It is a simple yet powerful graphic that will add a professional touch to any presentation. It is easy to customize and can be used for a variety of purposes.

This coloured powerpoint icon is perfect for presentations and displays. It features a modern, sleek design and is available in a range of vibrant colours. It is easy to use and adds a professional touch to your work.

This Monotone powerpoint icon on Scan WIFI is a simple yet effective way to add a professional look to your presentation. It is easy to customize and can be used to illustrate any concept related to scanning a wireless network. It is an ideal choice for any business or educational presentation.

This coloured powerpoint icon is perfect for making your presentation stand out. It features a login symbol in bright and vivid colours that will draw the attention of your audience. It is easy to use and can be resized to fit your needs. Get creative and make your presentation memorable with this powerpoint icon.

Monotone Powerpoint Icon on Login is a high-quality vector icon designed to be used in presentations, websites, and other digital projects. It features a simple, minimalistic design with a monotone color palette, making it perfect for modern and professional designs.

This slide represents the working flow of Common Data Encryption DES algorithm. The purpose of this slide is to outline the algorithm steps. This slide also explains the DES modes of operation, which include Digital Codebook, Cipher Block Chaining, etc. Deliver an outstanding presentation on the topic using this Working Of Common Data Encryption Des Algorithm Cloud Cryptography. Dispense information and present a thorough explanation of Pseudorandom, Initialization, Independent using the slides given. This template can be altered and personalized to fit your needs. It is also available for immediate download. So grab it now.

This slide demonstrates the functioning of Standard for Advanced Encryption AES algorithm. The purpose of this slide is to outline the different steps involved in the working of AES algorithm such as add round key, sub-bytes, shift rows, etc. Present the topic in a bit more detail with this Working Of Standard For Advanced Encryption Aes Algorithm Cloud Cryptography. Use it as a tool for discussion and navigation on Demonstrates, Encryption, Algorithm. This template is free to edit as deemed fit for your organization. Therefore download it now.

• Preferences

Data Encryption Standard (DES) - PowerPoint PPT Presentation

Data Encryption Standard (DES)

Data encryption standard (des) most widely used block cipher in the world . adopted in 1977 by national bureau standards (nbs) encrypts 64-bit data using 56-bit key – powerpoint ppt presentation.

• Most widely used block cipher in the world
• Adopted in 1977 by National Bureau Standards (NBS)
• Encrypts 64-bit data using 56-bit key
• Has widespread use
• Has been considerable controversy over its security
• First the left and right half of each 64-bit are treated as separate 32-bit quantities labelled L (left) and R (Right).
• The overall process at each iteration can be summarized in
• Where denotes the bitwise XOR function
• Initial Permutation (see the permutation tables)
• The output bit 1 for example is the input bit 58
• If we take the inverse permutation
• It can be seen that the original ordering is
• First R input is expanded to 48 bit to be equal to the iteration key by using the permutation table.
• The resulting 48-bit of R is XOR ed with the key and the result passes through a substitution function (S-box) that produces 32-bit output.
• The 32-bit output is permuted as defined in the permutation table also to produce the output.
• The input to each S-Box is 6 bits and the output is 4 bits.
• The first and last bits of the input to box from a 2-bit binary number to select a particular row in the DES S-Box table.
• The middle 4 bit selects a particular column.
• The decimal value in the selected cell is converted to a 4-bit binary output
• The input of 011011, the row is 01(row 1).
• The column is 1101 (column 13).
• The value in the row 1 and column 13 in the S-Box table cell is 5 , so the output is (0101).
• The first and the last bit of the output select one of four permutations for rows of the S-Box table
• Given a 64 bits key (with parity-check bit)
• Discard the parity-check bits
• Permute the remaining bits using fixed table P1
• Let C0D0 be the result (total 56 bits)
• Let Ci Shifti(Ci-1) Di Shifti(Di-1) and Ki be another permutation P2 of CiDi (total 56 bits)
• Where cyclic shift one position left if i1,2,9,16
• Else cyclic shift two positions left
• First the 56-bit key is subjected to a permutation governed by the DES key calculation table.
• Then the 56-bit is treated as 28-bit quantities labelled Co and Do.
• C and D are separately subjected to a circular shift or rotation of 1 or 2 bit governed by the DES key calculation table.
• They are also serve as input to another permutation to produce the 48-bit output.
• With many block ciphers there are some keys that should be avoided, because of reduced cipher complexity
• These keys are such that the same sub-key is generated in more than one round, and they include
• The same sub-key is generated for every round
• DES has 4 weak keys
• Semi-weak keys
• Only two sub-keys are generated on alternate rounds
• DES has 12 of these (in 6 pairs)
• Demi-semi weak keys
• Have four sub-keys generated
• None of these causes a problem since they are a tiny fraction of all available keys
• However they MUST be avoided by any key generation program
• The process of decryption is the same as the encryption process.
• The rule is as follows use the cipher text as input to the DES algorithm but use the keys in reverse order. That is use on the first iteration and on the second and son on
• DEC (Digital Equipment Corp. 1992) built a chip with 50k transistors
• Encrypt at the rate of 1G/second
• Clock rate 250 Mhz
• Cost about 300
• Applications
• ATM transactions (encrypting PIN and so on)
• Concerns about the strength of DES fall into two categories
• Concerns about the algorithm itself (nothing so far).
• Concerns about the use of 56-bit key.
• Electronic Frontier Foundation (EFF) announced that it had broken a new DES encryption using a DES Cracker machine for less than 250,000.
• A 128 bit key is guaranteed for unbreakable algorithm by Brute-Force.
• Differential cryptanalysis
• was discovered in the late 1980s by Eli Biham and Adi Shamir, although it was known earlier to both IBM and the NSA and kept secret. To break the full 16 rounds, differential cryptanalysis requires 247 chosen plaintexts. DES was designed to be resistant to DC.
• Linear cryptanalysis
• was discovered by Mitsuru Matsui, and needs 243 known plaintexts (Matsui, 1993) the method was implemented (Matsui, 1994), and was the first experimental cryptanalysis of DES to be reported. There is no evidence that DES was tailored to be resistant to this type of attack.
• Multiple enciphering with DES
• Extending DES to 128-bit data paths and 112-bit keys
• Extending the key expansion calculation
• The simplified form of multiple encryption has two encryption stage and two keys.
• Given a plaintext P and two keys K1 and K2 one can generate a cipher text C as
• Decryption equation is
• The key length is 56?2 112 bits
• Using two encryption stages and two keys
• CEk2(Ek1(P))
• PDk1(Dk2(C))
• It is proved that there is no key k3 such that
• CEk2(Ek1(P))Ek3(P)
• But Meet-in-the-middle attack
• Assume CEk2(Ek1(P))
• Given the plaintext P and ciphertext C
• Encrypt P using all possible keys k1
• Decrypt C using all possible keys k2
• Check the result with the encrypted plaintext lists
• If found match, they test the found keys again for another plaintext and ciphertext pair
• If it turns correct, then find the keys
• Otherwise keep decrypting C
• Given a known pair (P,C), the attack proceeds as follows
• Encrypt all the 256 possible values of K1store the results in a table.
• Next decrypt C using all the 256 possible values of K2 .
• Check the matching between the two tables. If the matching occurs then you recognized the two keys.
• DES variant
• Standardized in ANSI X9.17 ISO 8732 and in PEM for key management
• Proposed for general EFT standard by ANSI X9
• Backwards compatible with many DES schemes
• Uses 2 or 3 keys
• No known practical attacks
• Brute force search impossible (very hard)
• Meet-in-the-middle attacks need 256 Plaintext-Cipher text pairs per key
• Popular current alternative

PowerShow.com is a leading presentation sharing website. It has millions of presentations already uploaded and available with 1,000s more being uploaded by its users every day. Whatever your area of interest, here you’ll be able to find and view presentations you’ll love and possibly download. And, best of all, it is completely free and easy to use.

You might even have a presentation you’d like to share with others. If so, just upload it to PowerShow.com. We’ll convert it to an HTML5 slideshow that includes all the media types you’ve already added: audio, video, music, pictures, animations and transition effects. Then you can share it with your target audience as well as PowerShow.com’s millions of monthly visitors. And, again, it’s all free.

About the Developers

PowerShow.com is brought to you by  CrystalGraphics , the award-winning developer and market-leading publisher of rich-media enhancement products for presentations. Our product offerings include millions of PowerPoint templates, diagrams, animated 3D characters and more.